Other soil datasets

[sdtaylor]

Needs: soil water holding capacity plant wilting point

ideally in mm or some easily convertible unit

Currently using this one from the original analysis: Global Gridded Surfaces of Selected Soil Characteristics (IGBP-DIS)

Others:

Everything below is from: https://www.isric.org/explore/soil-geographic-databases
A few other datasets have water properties, but nothing with both capacity + wilting point.

WISE Soil Property Databases
has water capacity only (amount 19 mostly chemical vars). unit is in kpa (?)

SoilGrids
No water properties. Though FAQ say they might do them in the future.

gNATSGO
From NRCS, USA only. Looks like it has water holding capacity

POLARIS Likely has field capacity, not wilting point. From the readme

theta_s - saturated soil water content, m3/m3
theta_r - residual soil water content, m3/m3

Documentation not the best, essentially an FTP of numerous tifs

[sdtaylor]

nothing else to do here as no other dataset has the needed variables.

[sdtaylor]

One I found too late which could have been used

Global High-Resolution Soil Profile Database for Crop Modeling Applications
https://dataverse.harvard.edu/dataset.xhtml?persistentId=doi:10.7910/DVN/1PEEY0

We applied a pedo-transfer function to derive some soil hydraulic properties (saturated hydraulic conductivity, soil water content at field capacity, wilting point and saturation) which are critical to simulate crop growth.